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/*
dns.h - dns library declarations based on firedns Copyright (C) 2002 Ian Gulliver
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _DNS_H
#define _DNS_H
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string>
struct dns_ip4list {
in_addr ip;
dns_ip4list *next;
};
class DNS
{
private:
char *result;
in_addr *binip;
int t,i;
void dns_init();
unsigned int fd;
void dns_init_2(const char* dnsserver);
in_addr *dns_aton4(const char * const ipstring);
char *dns_ntoa4(const in_addr * const ip);
int dns_getip4(const char * const name);
int dns_getip4list(const char * const name);
int dns_getname4(const in_addr * const ip);
char *dns_getresult(const int fd);
in_addr *dns_aton4_s(const char * const ipstring, in_addr * const ip);
char *dns_ntoa4_s(const in_addr * const ip, char * const result);
char *dns_getresult_s(const int fd, char * const result);
in_addr *dns_aton4_r(const char * const ipstring);
char *dns_ntoa4_r(const in_addr * const ip);
char *dns_getresult_r(const int fd);
public:
DNS();
DNS(std::string dnsserver);
~DNS();
bool ReverseLookup(std::string ip);
bool ForwardLookup(std::string host);
bool HasResult();
std::string GetResult();
int GetFD();
};
#endif
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